Wolfan is Batman on the cheap. That's the only way to describe it.
Admittedly, it's set in grim and distant past, but that doesn't hide the similarity between the graphics techniques and the Ocean game. Even the bat ears and cloak, cunningly disguised as elven pointies and our hero's cape of office, show that the author appears to have gained inspiration from elsewhere.
Your heroic quest is to destroy the reign of the Nasty One, who's guards and monsters habitually leap down at you from pillars with nasty looking swords. During combat the two fighting figures are enlarged to cover the whole screen using a simple, but effective, magnification technique. Unfortunately fights last for only a few seconds when you're usually defeated. The graphics are also, sadly, wooden in animation and unconvincing as they goose-step around the screen.
Definitely not up to the usually high Mastertronic standard.